Nick,
Thanks for that, my 568 doesn't have MRC, the delay is just a single variable with 0 - 30ms available.
I guess that the G68 has a large memory buffer available amungst other things.

Cheers anyway.
Ian T.

598DP SDI, 568.25MM, Crystalio II 3800, 435 XDE (soon to be 50pf20?), NVA A80 x 8, AE2's, AE2 Pro, AE1's.